Fuel line leak/questions

My 2000 Crew Cab 4x4 SRW has a single rear tank. I got it in Nov, and started working on it to get it road worthy over the holidays. Went to take care of the last item (leaking break line at the left rear tire), and notice that the break fluid had eaten through either the fuel line, or the return line. I suspect its the return line since the truck will start and drive without starving for fuel. Any way, how difficult is the tank to remove? I've had both tanks off my IDI. The front was easy, the rear was straight from the pits of hell (just for reference). Also, anyone have any suggestion on where to get new steel lines? I'd l like to replace them both while I'm in there, but I'm having trouble identifying the correct part numbers. Most of what I'm finding are for the stuff up in the engine bay.

Thanks,
Mark

Pulling the tank is just like any other. Lol
Go to fordparts.com and look up the diagrams. You can get the correct part numbers.


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pulling the bed off makes this a lot easier.
curious how the brake line affected the fuel lines.
seems odd to me.

I'm only guessing about the break line contributing because its in the same location as the break line leak, and it's up behind the frame where I would have thought that it was somewhat protected.

I tried fordparts.com, but it wasn't any help. Their parts diagram only looks to go back to the transmission.

If you stop by a dealer parts department, they can bring up the diagrams better.
I saw stuff for the rear, but the diagrams won't enlarge for me.

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Taking the bed off would make it easier, but generally that helps the most when I'm trying to work on the sending unit, pick up lines, or anything that's actually inside the tank. For this job the tank really needs to come off since all the lines are sandwiched between it and the frame. It would still help, but I think this bed is going to be a pain in the rear to remove. Besides, if I take it off, or tilt it up a lot, I won't have a work bench to sit all my parts and tools on

My plan right now is to go ahead and drop the tank, then remove what ever lines have any noticeable damage. From there I can take them with me and let the parts store and/or dealership help me identify them.